#!/usr/bin/python
#Filename: reference.py

def print_result():
	global src, dest
	print 'src: %s' % src
	print 'dest: %s' % dest

src = ['Monkey', 'Elephant', 'Tiger', 'Bull', 'Goose']
dest = src
print_result()

del src[0]
print_result()

del dest[0]
print_result()

dest = src[:]

del src[0]
print_result()

del dest[0]
print_result()
